Additives for inhibiting gas hydrate formation

US6566309B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Peter Klug · Großostheim, DE
• Michael Feustel · Kelkheim, DE

Key dates

• Filing date: May 2, 2000
• Grant date: May 20, 2003
• Expiry date: May 2, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S585/95
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to the use of compounds of the formula (1) in whichR1 is C1-C30-alkyl, C2-C30-alkenyl or a group of the formula —CH2—CO—NR2R3 or a C6-C18-aryl radical which may be substituted by a C1-C12-alkyl group,R2, R3 independently of one another, are hydrogen, C1-C6-alkyl or C5-C7-cycloalkyl, or R2 and R3, including the nitrogen atom to which they are bonded, form a ring of 4 to 8 ring atoms, it being possible for the ring also to contain oxygen or nitrogen atoms in addition to carbon atoms,A is a C2-C4-alkylene radical andn is an integer from 1 to 20,as gas hydrate inhibitors.